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Method for authenticating and/or checking the integrity of a subject

A technology of integrity and objects, applied in the field of authentication and inspection of the integrity of material objects, visual cryptography, unified authentication of material objects

Pending Publication Date: 2018-08-03
KERKVEST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If such a method or process allows authentication without a computing device, since the authentication results from a visual comparison performed by the operator, the main disadvantage of such a visual method is the need for a long initial training of the operator and / or the operator's relatively long Observation over time so that authenticity can be inferred with confidence and certainty of satisfaction

Method used

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  • Method for authenticating and/or checking the integrity of a subject
  • Method for authenticating and/or checking the integrity of a subject
  • Method for authenticating and/or checking the integrity of a subject

Examples

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Embodiment Construction

[0141] Within the scope of a first exemplary embodiment of the method according to the invention, as shown in FIG. 1 , it is selected as the object of an authentication S banknote to be printed on watermarked paper. For this purpose it is chosen as authentication region R, an at least partially translucent watermark region. Such a watermark region R has the advantage of containing a watermark pattern which provides means for easily identifying the authentication region at the level at which the Glass pattern should appear during the authentication phase. Furthermore, the watermarked areas allow easy observation of the fibrous structure of the paper that constitutes the intrinsic structure, which at the scale of observation can be compared with a substantially random continuous medium, which is not easily reproducible or even nonreproducible. In the case of paper, a non-reproducible essentially random continuous microstructure can be discussed, since this microstructure scatter...

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Abstract

The invention relates to a method for authenticating and / or checking the integrity of a subject, comprising: - visually superimposing, optically or electronically: - at least one so-called authentication image of at least one authentication region of an authentic subject, the authentication image comprising at least one texture of random composition, - and, also, the authentication region per se of a candidate subject or at least one verification image of the authentication region of the candidate subject, - in the event of observing, on the image resulting from the superimposition, a Glass pattern optical phenomenon in the authentication region, concluding that the candidate subject is the authentic subject and / or the at least partial integrity of the authentication region of the authentic subject.

Description

technical field [0001] The present invention relates to the technical field of authentication and inspection of the integrity of a material object (subject) and the field of visual cryptography. In a preferred but not exclusive application, the invention relates to the field of unified authentication of material objects. Background technique [0002] In the aforementioned field, it is known, in particular from patent US 4423415, to identify material objects by extracting a signature from a so-called authentication area comprising a substantially random three-dimensional intrinsic microstructure. This extraction is usually performed using electronic computing means such as a computer, and such computing means need to be implemented again in order to verify the authenticity of the object. Therefore, according to certain known methods, a first extraction of the signature is performed from the authentication area in order to record the authentication signature. Then, during au...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG07D7/205G06V20/80G07D7/003G06F18/22
Inventor Y·布唐T·富尔内尔
Owner KERKVEST
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